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著者

Department of Applied Chemistry, Faculty of Science, Science University of Tokyo

抄録

In<SUB>2</SUB>O<SUB>3</SUB>(ZnO)<SUB>m</SUB> powder with laminal structure like a superlattice showed photocatalytic activities for H<SUB>2</SUB> evolution from an aqueous methanol solution and O<SUB>2</SUB> evolution from an aqueous silver nitrate solution under visible light irradiation (λ > 420 nm). Anodic photocurrent was also observed under visible light irradiation (λ > 480 nm) when In<SUB>2</SUB>O<SUB>3</SUB>(ZnO)<SUB>m</SUB> sintered electrodes were employed. The band gaps of In<SUB>2</SUB>O<SUB>3</SUB>(ZnO)<SUB>3</SUB> and In<SUB>2</SUB>O<SUB>3</SUB>(ZnO)<SUB>9</SUB> were 2.6 and 2.7eV, respectively, which were smaller than those of In<SUB>2</SUB>O<SUB>3</SUB> and ZnO of starting materials.